Lay structure for wire-looms.



W. 0. BROWN. LAY STRUCTURE FOR WIRE L OMS.

APPLICATION FILED snr 907.

980 ,591, Patented Jan. 3, 1911.

Z SHEETS-BHEBT1.

W. 0. BROWN.

LAY STRUCTURE FOR WIRE LOOMS.

APPLICATION FILED SEPT. 4, 1907.

Patented Jan. 3, 1911.

2 SHEETS-SHEET 2.

GOO000G)OQOoQO900 OOOO'OOO/OQQQOOOOO UNITED STATES PATENT OFFICE.

WILFORD 0. BROWN, 0F HOLYOKE, MASSACHUSETTS.

LAY STRUCTURE FOR WIRE-LOOMS.

Specification of Letters Patent.

Application filed September 4, 1907.

Patented Jan. 3, 1911.

Serial No. 391,342.

To aZZ whom it may concern:

Be it known that I, VILFORD C. BROWN, a citizen of the United States ofAmerica, and resident of Holyoke, in the county of Ham pden and State ofMassachusetts, have invented certain new and useful Improvements in LayStructures for Tire-Looms, of which the following is a full, clear, andexact description.

This invention relates to the lay structure of a loom, and moreparticularly one which is comprised in a loom for weaving wire clothwhich usually is of great width and requiring, therefore, a very widelay.

The object of the invention is to provide in a most simple andpracticable manner means for constraining the shuttle against forwarddeflection during its shoots through the shed.

Heretofore, especially in looms for wcaving wire cloth, variousexpedients have been adopted for keeping the shuttle closely rela tivelyto the reed in its projection from one side of the loom to the other,the same in some cases involving the employment of a carrier by means ofwhich the shuttle is positively conveyed from one side of the loom tothe other. Such expedients have been comparatively complicated,expensive, and liable to derangement, and consequently undesir able.

As a new and improved means for constraining the shuttle in its propercourses back and forth transversely through the shed, the presentinvention consists of a lay having a series of downwardly depending pinsmounted and arranged in a longitudinal line of the lay,transversely ofthe loom,-on the portion of the lay beam which forms the upper boundaryof the shuttle race, suitably forward of the reed so that such pinsduring the rearward positioning of the lay project downwardly into theshed by passing between strands of the upper set of the warps thereof,and while constituting no impediment to the free traversing movements ofthe shuttle, insure that the same will be maintained always in itsdesired course forward of and parallel with the reed.

The improvements are illustrated in the accompanying drawings, in which,

Figures 1 and 2 are cross sectional views of a lay and the equipmentsconstituting the present improvements, together with the breast beam andharness, and showing the shed,-the first view showing the parts in thebeating up position, and the second view showing the lay in itsrearwardly swung position, and in relation to the shed through which theshuttle is being, or is about to be, shot. Fig. 3 is a front elevationof the parts shown in Fig. 1, and Fig. 4: is a plan view of the lay.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings,-A represents the lay, B, the breast roll, C theharnesses, and X the shed constituted by the warp wires or strands w.

The lay beam comprises upper and lower separated horizontal members aand Z) carried at the lower end portions of arms or swords (Z,understood as pivotally mounted at the top of the loom, substantially asmay be observed in wire weaving looms illustrated and described, forinstance in Letters Patent of the United States issued Oct. 15, 1901,No. 684,536, and March 8, 1904, No. 754,192.

f represents the reed located in the usual manner across the openingbetween the up per and lower members a and Z) of the lay.

The lay cap or upper member of the lay is provided with forwardlyextending flange or ledge 9 through which are engaged a series ofmetallic pins or studs h h, the lower extremities of which protrude fora proper distance below the bottom surface of the upper lay beam membera and the extension ledge 9 thereof.

The lay is supported by the swords d d hung in the usual manner at theirupper ends, and the warps constituting the shed have a downward andforward inclination as shown in the drawing when the lay is in itsrearward position, there dwelling for a short period (see Fig. 2). Underthese conditions the ledge g has its under surface'in proximity to thetop of the shed, and all the pins of the series have their dependingtapered portions protruding through the upper warps and into the shed,and form, so to speak, a row of depending pickets protruding nearly butnot quite to the level of the center of the shuttle j, thus constitutingimpediments, extending along the lay entirely from one sword to theother, against any deflections of the course of the shuttle from therequired rectilinear traverse in close adherence to the reed.

It will be noticed in Fig. 2 that the points of the depending pins donot have their dispositions below the weft delivery opening indicated atz of the shuttle.

Inasmuch as the weft is more or less slack at the side of the loom fromwhich the shuttle is shot up to the time the shuttle approaches themiddle of the shed, the pins, as represented in Fig. 3, are showninclined downwardly and inwardly, but all arranged in asubstantiallytransverse plane.

By reason of the inclination of the pins in the reverse directions atthe outer ends of the lay, the slack weft at the commencement of theshuttle shoots may not be hooked around any of the pins to be caught andbroken thereby; but, on the other hand, in case the slack weft shouldfly up and strike any one of the pins it will easily slide off therefromand be carried across through the shed with no liability ofbreakage,--it being appreciated that so soon as the shuttle approachesand passes the middle of the lay the weft wire will have been drawn tautand carried in a horizontal line slightly below the points of the row ofpins.

A loom having the lay thereof equipped as shown and described has, inactual protracted use been found entirely reliable and satisfactory. Andwhile the lay structure has been illustrated and described withparticularity, minor modifications and changes of a manifest charactermay be made without departing from the invention or sacrificing any ofthe advantages thereof.

I claim r 1. A loom lay having means for constraining the shuttleagainst forward deflection in its shoots through the shed, consisting ofa longitudinally arranged series of down wardly depending pins mountedon the portion of the lay beam which forms the upper boundary of theshuttle race forward of the reed, an intermediate portion of the pinsbeing vertically set while those at the lateral regions of the lay beamare inclined downwardly and inwardly.

2. A loom lay comprising the swords and upper and lower separatedhorizontally parallel members extending forward of the reed, the uppermember being constructed with the forwardly projecting andlongitudinally extending ledge having a series of pins extendingtherethrough and downwardly depending therebelow substantially as andfor the purpose set forth.

3. In a loom, in combination, the harnesses and breast roll arranged forimparting to the shed, constituted by the warps, a downward and forwardinclination, and a suspension lay comprising a horizontal member adaptedin the swinging movements thereof to have such horizontal memberalternately in proximity to and upwardly removed from the shed, saidhorizontal member of the lay being provided with means for constrainingthe shuttle against forward deflection in its shoots through the shed,consisting of a series of downwardly depending separated pins mountedand arranged in a longitudinal line on said horizontal member, whichpins during the rearward positioning of the lay project downwardly intothe shed by passing between strands of the upper set of warps thereof,and which upon the forward positioning of the lay are withdrawn upwardlyout from the shed.

Signed by me at Holyoke, Mass, in presence of two subscribing witnesses.

VVILFORD C. BROVN.

\Vitnesses GRACE A. ALLISON, ROBERT CADDEN.

